ARTICLE:

• A NOTE ON THE LAMINAR CORE-ANNULAR FLOW OF TWO IMMISCIBLE FLUIDS IN A HORIZONTAL TUBE  download article

Sayavur I. Bakhtiyarov
Space Power Institute, Auburn University, Auburn, AL 86849-5820, USA

Dennis A. Siginer
Department of Mechanical Engineering, Auburn University Auburn, AL 86849-5841, USA

ABSTRACT

The lubrication of a non-Newtonian liquid by a Newtonian fluid in the concentrically stratified laminar flow of two immiscible fluids in a horizontal tube has been investigated experimentally by an optomechanical method. Data for the interfacial velocity and the total volume flow rate for two zero shear rate viscosity ratio are presented. The results of this investigation are useful in solving high wax content crude oil transportation problems and in the design of lubricated pipelines.

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